演替度 degree of succession

互联网2013-11-15

761

演替度 degree of succession 用相对值判断演替进行程度的指标。系沼田真（ 1961）提出的指标。即以各群落组成种的寿命（ l）与顶极指数（ c）、优势度（ d）之乘积的总和除以种数（ n），再乘以植被率（υ），所得值来表示，即演替度（ DS） =[（∑ c． l． d）／ n．υ ]。

相关产品推荐

赛默飞世尔Thermo Fisher STEREOMICROSCOPE EZ4 13 TO 56X tion 12.8 to 56x 100-240V 50-60Hz 60 degree viewin 货号：T_70311944429

￥16000

赛默飞世尔Thermo Fisher Hydrometer 200 degree series length 250mm range 货号：T_70312801438

￥70

赛默飞世尔Thermo Fisher MULTIPLE ADAPTOR GLASS 2 NECKS 45 DEGREE SOCKET 19/26 CONE 24/29 (MA2/3) 货号：T_70312061603

￥70

$赛默飞世尔Thermo Fisher Thermometer fractional degree 101 total total immersion -1°C to 101°C x 0.2 405mm length 货号：T_70312309359$

赛默飞世尔Thermo Fisher Thermometer fractional degree 101 total total immersion -1°C to 101°C x 0.2 405mm length 货号：T_70312309359

￥5

赛默飞世尔Thermo Fisher Stirrer Uni-form maxi with 45 degree angled blade for crystal stirring and solid suspension borosili 货号：T_70312997076

￥1200